649063 has 2 divisors, whose sum is σ = 649064. Its totient is φ = 649062.

The previous prime is 649039. The next prime is 649069. The reversal of 649063 is 360946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 649063 - 2¹⁷ = 517991 is a prime.

It is an Ulam number.

649063 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324531 + 324532.

It is an arithmetic number, because the mean of its divisors is an integer number (324532).

2⁶⁴⁹⁰⁶³ is an apocalyptic number.

649063 is a deficient number, since it is larger than the sum of its proper divisors (1).

649063 is an equidigital number, since it uses as much as digits as its factorization.

649063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 649063 is about 805.6444625267. The cubic root of 649063 is about 86.5822666177.

The spelling of 649063 in words is "six hundred forty-nine thousand, sixty-three".